Re: Failed attempt to boot a (non-debug) head -r339076 on an old PowerMac G5 "Quad Core" (built via devel/powerpc64-gcc): Waking up CPU 1
Andreas Tobler <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.ppc |
|---|---|
| Message-ID | <[email protected]> |
On 09.10.18 22:35, Mark Millard via freebsd-ppc wrote: > [Reverting head -r334498 in my head -r339076 context was enough to get > the G5 so-called "Quad Core" to boot just fine as a variant of > -r339076 .] > > On 2018-Oct-9, at 12:54 PM, Mark Millard <marklmi at yahoo.com> wrote: > >> On 2018-Oct-9, at 8:20 AM, Mark Millard <marklmi at yahoo.com> wrote: >> >>> [The stable/head mix seems to be a wrong idea: 11.2 gets past >>> the SMP: messages just fine on the so-called G5 "Quad Core".] >>> >>> On 2018-Oct-8, at 5:14 PM, Mark Millard <marklmi at yahoo.com> wrote: >>> >>>> On 2018-Oct-8, at 1:27 PM, Justin Hibbits <chmeeedalf at gmail.com> wrote: >>>> >>>>>> . . . >>>>> >>>>> It would be helpful to know the last known-good SVN revision, both for >>>>> Head and 11.x, as well as the oldest failing one. Since my G5 bit the >>>>> dust, I can't check locally. >>>> >>> . . . >> >> There are examples of head's kernels that sometimes >> fail to get to the "SMP:" messages and sometimes work >> for getting there (and beyond). So: >> >> My reporting any example failure is a solid indicator >> of the "does not reach "SMP:" problem in that build. >> (All tries reached the waking message on at least cpu >> 1.) >> >> My reporting "worked" for a revision might be a >> misclassification. (This makes for a messier >> "binary-like search".) >> >> That said, the summary of the later detail is: >> >> head -r334494 kernel worked >> head -r334528 kernel failed >> >> (There is nothing between those for: >> >> https://artifact.ci.freebsd.org/snapshot/head/r*/powerpc/powerpc64/kernel.txz >> >> so getting a smaller range requires builds. >> I've not attempted that.) >> >> The only machine-dependent powerpc64 change between >> those 2 that I see is: >> >> Author: jhibbits >> Date: Fri Jun 1 21:37:20 2018 >> New Revision: 334498 >> URL: >> https://svnweb.freebsd.org/changeset/base/334498 >> >> >> Log: >> Increase powerpc64 KVA from ~7.25GB to 32GB >> . . . >> >> . . . > > In my -r339076 build context I reverted -r334498, did a > buildkernel, installed it, and rebooted into -r339076. > > The result booted just fine. > > It does appear that, for head, -r334498 makes the difference > for some reason. Unfortunately I have to confirm your findings. Andreas _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-ppc To unsubscribe, send any mail to "[email protected]"